00317nam a2200121 a 4500 20210219154443.0 030610s2000 mx r 000 0 spa d UPN01000125334 SEP L227 D375 B7 1987 Manual del director del plantel de educación especial. Libro 0 0 lcc 0 6 SEP BCUPN50 BCUPN50 SEP 2023-05-09 L227 D375 B7 1987 133096 2020-12-31 00:00:00 1 LIBRO 97513 97513